Sum of prime numbers Andrey Tsvetkov

Compute the sum of all prime numbers in a stream of binary integers as fast as possible.

Input: 1 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: The uint64 sum of all values that are prime, printed as a decimal string.

Back to listFeb 5, 2026 02:16vahookvahookError
Source Code

Source code access is restricted. Log in to request access.

Challenge History
DateChallengerCostTypeStatus
May 17, 2026 06:59M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 06:5908,999,5981,195,00002,113,536expected "6442459076 ", got "8136 "
2May 17, 2026 06:59010,005,4571,206,00002,113,536expected "6442459076 ", got "8136 "
3May 17, 2026 06:5908,542,5631,210,00002,113,536expected "6442459076 ", got "8136 "
4Feb 5, 2026 02:163,45319,360,7201,013,0002,026,0002,281,472
5Feb 5, 2026 02:163,47018,349,7971,018,0002,036,0002,277,376
6Feb 5, 2026 02:163,52520,476,1351,034,0002,068,0002,494,464